September weather forecastCatarman, Philippines
September
Weather in September
The first month of the autumn, September, is still a tropical month in Catarman, Philippines, with an average temperature varying between 30°C (86°F) and 25.7°C (78.3°F).Temperature
The shift into September uncovers an average high-temperature of a still tropical 30°C (86°F), subtly different from the previous month. During the nights of September, Catarman maintains an almost steady temperature with an average low of 25.7°C (78.3°F).Heat index
The average heat index in September is computed to be a very hot 37°C (98.6°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.Note that heat index values are valued for light wind and location in the shade. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', offers an insight into how hot it feels when we factor in moisture content. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.
Humidity
In Catarman, the average relative humidity in September is 79%.Rainfall
In Catarman, in September, it is raining for 21.3 days, with typically 129mm (5.08") of accumulated precipitation. In Catarman, Philippines, during the entire year, the rain falls for 269.1 days and collects up to 1558mm (61.34") of precipitation.Sea temperature
In September, the average sea temperature is 29.3°C (84.7°F).Note: Water temperatures in the range of 25°C (77°F) to 29°C (84.2°F) are warm and delightful, ensuring comfort during water activities over extended periods.
Daylight
In September, the average length of the day in Catarman is 12h and 12min.On the first day of the month, sunrise is at 5:30 am and sunset at 5:52 pm. On the last day of September, sunrise is at 5:30 am and sunset at 5:32 pm PST.
Sunshine
In Catarman, the average sunshine in September is 8.1h.UV index
February through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 7 transforms into these recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be wary! Reflections from sand and water make UV radiation more intense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Catarman, Philippines
- Average high temperature in September: 30°C
The warmest month (with the highest average high temperature) is May (31.5°C).
The month with the lowest average high temperature is January (27.4°C).
- Average low temperature in September: 25.7°C
The month with the highest average low temperature is August (26.1°C).
The coldest month (with the lowest average low temperature) is February (24.3°C).
Average pressure in September
Catarman, Philippines
- Average pressure in September: 1008.2mbar
The month with the highest atmospheric pressure is February (1012.4mbar).
The month with the lowest atmospheric pressure is August (1007.9mbar).
Average wind speed in September
Catarman, Philippines
- Average wind speed in September: 12.5km/h
The windiest month (with the highest average wind speed) is January (18.8km/h).
The calmest month (with the lowest average wind speed) is May (9.5km/h).
Average humidity in September
Catarman, Philippines
- Average humidity in September: 79%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are May and August (78%).
Average rainfall in September
Catarman, Philippines
- Average rainfall in September: 129mm
The wettest month (with the highest rainfall) is December (280mm).
The driest month (with the least rainfall) is April (66mm).
Average rainfall days in September
Catarman, Philippines
- Average rainfall days in September: 21.3 days
The month with the highest number of rainy days is December (25 days).
The month with the least rainy days is August (18.9 days).
Average sea temperature in September
Catarman, Philippines
- Average sea temperature in September: 29.3°C
The best month for swimming (with the highest average sea temperature) is June (29.8°C).
The coldest month (with the lowest average sea temperature) is February (27°C).
Average daylight in September /
Average sunshine in September
Catarman, Philippines
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Catarman, Philippines
- Average sunshine days in September: 7.3 days
The month with the most sunshine days is August (9.7 days).
The month with the least sunshine days is November (3.5 days).
Average UV index in September
Catarman, Philippines
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January and December (UV index 6).
Average cloud cover in September
Catarman, Philippines
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is May (Cloud cover 30).
Average visibility in September
Catarman, Philippines
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
